Calk for shoes



1;; 10, 19370 J. J. WHITE 59 CALK FOR SHOES Filed March 18, 1936 JOHN (/06- Patented Aug. 10, 1937 1 2,089,459

.UNITED STATES PATENT OFFICE CALK FOR SHOES John Joseph White, Chicago, Ill., assignor to The Florsheim Shoe Company, Chicago, 111., a corporation of Illinois Application March 18, 1936, Serial No. 69,473

3 Claims. (01. 36-59) This invention relates to shoe construction and Figure 3 is an enlarged fragmentary sectional particularly to calks for sport and other shoes. View taken substantially in the plane designated Among the objects of the invention are to by the line IIIIII in Figure 2. provide: a calk of substantially increased rugged- As shown on the drawing:

'5 ness; means in a calk construction for substan- Referring now more particularly to the drawtially preventing accidental loss of the peg thereing, a fragmentary part of a shoe l is illusof; and a calk construction which, when applied, trated, equipped with calks 2 constructed and defies access of pebbles, moisture and other unattached to the outsole 3 in accordance with H desirable matter to the inner part of the calk, the invention. In accordance with one form of In, accordance with the general features of t invention, e eelk structure m y comprise 10 the invention, the calk preferably comprises two essentially tw p s, a an an r piece 4 parts, one of which is preferably permanently and a pref rably removable D The a anchored to the outsole and is threaded to receive Piece y take the m o a p preferably a complementally threaded relatively removtightly fitted in a hole 6 formed in the outsole 3.

able ground-engaging peg. The peg has a sharp- The plug 4 is preferably formed with a tubular l5 edged flange which, as the peg is threaded home, P i 7 d p d to p j p y through bites or cuts a groove into the outsole so as to the hole 6 and to be Closed a j the lower form a weatherand dirt-proof seal and fricsurface 8 of the outsole, a plate-like flange 9 tion hold affording substantial resistance to at the closed end of the tubular portion and loosening of th Th th outsole is an externally threaded stem l0 projecting below tected by the peg against entry of moisture to the flangethe interior of the shoe and entry of pebbles or The anchor element 4, after the formation of the like which, in prior calk constructions, have the hole 6, is inserted through a d e om had a, prying efiect e ult i loosening d the outer side 8 of the outsole and then, when ofttimes breaking and loss of the peg. This seal the flange 9 is see-ted against id te d 5 also simplifies cleaning of the bottom of the sole the free end ll of the tubular portion 7 is i and the exterior of the peg and obviates the pended in the manner of e h W ve a d use of expensive non-rusting calk material. embedded as shown 3at under Pressure in the The anchor part may-form the malemember Q q 2 adjacent its inner Side 50 as to of the connection and thus, should the peg be Permanently anchor the anchor element to the 30 broke off or f any reason separated from the outsole.' The surface l3 of the outsole 3 is adaptancho t, th tt forming as it does ed to. be engaged with the filler usually secured seal with the outsole of the shoe, prevents moisunder the insole, (Jr/in the absence of a filler,

, ture from gaining access to the inner part of directly with the bottom of the insole. The rivet- "'35 theshoe, such as the filler between the outsole ing, as Stated, is done under Pressure 50 that and the insole, or directly to the insole in the the P 4 Wih be tightly held against any loosenabsence f a fi11er The anchor part may ing, and due to the relative compressibility of ject down beyond the outer surface of the outthe outsole material, which may be of leather $01 t serve as temporary g'round-gripping or other suitable outsole material, the flange 9 40 means until it receives another peg, but will be Will be embedded in the Outer lower face 3 40 protected by adja ent pegs against injury of the outsole as shown. The flange 9 assists Further objects and advantages of the inveni preventing cahtihg of the Plug relatively to tion will appear as the description proceeds. the outsole. A150, the P e b een t e Out- This invention (in a preferred form) is illu s- Sole material and the flange 9 o s a Sea Subtrated in the drawing and hereinafter more fully stahtiehy Preventing entry of moisture to the 45 described. hole 6.

Figure 1 is a fragmentary elevational view of The D 0f the calk as shown at 5 p es the forepart of a shoe equipped wit calks a truncated substantially pyramidal stem [4 and bodying the invention, and shown in dotted lines a base flange 15 Which y have a substantially key f applying d removing th pegs of th flat bottom surface but preferably is tapered calks. upwardly, slightly, from the stem as shown at l6.

Figure 2 is a fragmentary bottom view of the The flange has a p ip l s ially yl ni forepart of a shoe embodying the invention, the drieei Wall Which terminates p y in a peg of one of the calks being removed to show knife edge l8. The flange I5 is recessed on its details of construction. upper side, providing a substantially flat recessed 5 bottom I9 and an upwardly tapered wall 20 terminating in said edge I8. The peg 5 is in the form of a cap and is centrally tapped at 2I downwardly from said cavity in substantial coaxial relation to the cap for receiving the threaded stem ID of the plug 4.

In applying the peg 5, the same is shoved upwardly to receive the threaded stem [I0 and thereupon rotated upwardly. As the rotation continues, the knife edge l8 comes into engagement with the outer side 8 of the outsole 3 and cuts its way thereinto, forming a groove 22. Said side 8 of the outsole may be moistened adjacent the plug flange 9 prior to screwing home the peg 5, to facilitate the movement of the knife edge I8 into the outsole. The tapered wall 20 has an inward camming effect on the portion of the outsole engaged thereby, said portion yielding inwardly under considerable pressure and being compressed by said pressure to such an extent as to engage the outer periphery of the flange 9 of the plug. The friction between the outsole material and the engaged surfaces of the flange of the peg 5 is such as to prevent accidental retrograde movement of the peg, such as would otherwise occur when striking obstacles and due to the continuous pounding on the peg during wear of the shoe. In the event the outsole material were moistened, the drying thereof enhances the friction on the peg 5; When the peg is thus driven home, it is securely attached to the plug 4 and. at the same time the portion of the outsole intimately surrounding the flange I5 serves as a protective wall therefor, preventing the entry of pebbles, dirt and the like which ultimately would have the efiect of prying the cap or breaking the same or otherwise interfering with proper operation of the calk structure. This seal also obviates the need of making the plug of rust-proof material.

The parts are so constructed as to be rugged in service, and should for any reason the cap become separated from the plug, the stem I!) of the plug will have some gripping effect to assist the remaining pegs, and at the same time will be protected by such remaining pegs in the event a hard surface is encountered.

The stem I4 of the peg is given a substantially pyramidal shape for strength and also to accommodate a key 23 both for applying and for removing the peg. The stem I4 of the peg is sufficiently elongated to have the proper calking effect in the ground and yet is not sufficiently slender to be likely to be broken off when striking an obstacle.

If desired, different shaped pegs may be used, according to the character of wear to which the golf or other shoe equipped with the calks is to encounter. Such differently shaped pegs will preferably be formed with the same flange construction as that of the illustrated peg, including the base I5, edge I8, etc., and may be internally threaded for engagement with the stem I8. Thus the key 23 may be employed for applying and removing any peg adapted for cooperation with the stem I0.

It will be appreciated that while the stem I8 is externally threaded and the peg 5 internally threaded, the threading could be reversed as to the parts without departing from the principles of the invention. Moreover while a threaded connection is illustrated, a bayonet or other suitable type of preferably releasable connection may be employed.

I am aware that many changes may be made and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I, therefore, do not purpose limiting the patent granted hereon otherwise than necessitated by the prior art.

I claim as my invention:

1. Shoe construction including an outsole having a hole, a plug having a portion of thecharacter of a hollow rivet anchored in and filling said hole, the extremity of the hollow portion being flared and pressed into the inner surface of said outsole, said plug having an integral flange which bears against the outer surface of the outsole when the plug is secured in place in said hole and also having an integral externally threaded stud portion projecting outwardly from the outsole, and a peg having an interiorly threaded part receiving the threaded stud of the plug, .said peg having an integral flange with a sharpened margin encompassing the plug flange and embedded in the outsole.

2. Shoe construction including an outsole having a hole, a plug having a portion of the character of a hollow rivet anchored in and filling said hole, the extremity of the hollow portion being flared and pressed into the inner surface of said outsole, said plug having an integral flange which bears against the outer surface of the outsole when the plug is secured in place in said hole and also having an integral externally threaded stud portion projecting outwardly from the outsole, and a peg having an interiorly threaded part receiving the threaded stud of the plug, said peg having an integral flange with a sharpened margin encompassing the plug flange and embedded in the outsole, and the inner surface of the peg flange adjacent its sharpened margin being inclined to compress the material of the sole within the peg flange against the plug flange to prevent entry of moisture and to prevent retrograde movement of said peg.

3. Shoe construction including an outsole having a hole, a plug having a portion of the character of a hollow rivet anchored in and filling said hole, the extremity of the hollow portion beingflared and pressed into the inner surface of said outsole, said plug having an integral flange which bears against the outer surface of the outsole when the plug is secured in place in said hole and also having an integral stud portion projecting outwardly from the outsole, and a peg having a part receiving the stud of the plug, said stud and peg having interengageable means for connecting them together, and said peg having an integral flange with a sharpened margin encompassing the plug flange and embedded in the outsole.

JOHN JOSEPH WHITE. 

